farming/hoebomb.lua

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-- load support for intllib.
local MP = minetest.get_modpath(minetest.get_current_modname())
local S, NS = dofile(MP.."/intllib.lua")
-- hoe bomb function
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local function hoe_area(pos, player)
-- check for protection
if minetest.is_protected(pos, player:get_player_name()) then
minetest.record_protection_violation(pos, player:get_player_name())
return
end
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local r = 5 -- radius
-- remove flora (grass, flowers etc.)
local res = minetest.find_nodes_in_area(
{x = pos.x - r, y = pos.y - 1, z = pos.z - r},
{x = pos.x + r, y = pos.y + 2, z = pos.z + r},
{"group:flora"})
for n = 1, #res do
minetest.swap_node(res[n], {name = "air"})
end
-- replace dirt with tilled soil
res = nil
res = minetest.find_nodes_in_area_under_air(
{x = pos.x - r, y = pos.y - 1, z = pos.z - r},
{x = pos.x + r, y = pos.y + 2, z = pos.z + r},
{"group:soil"})
for n = 1, #res do
minetest.swap_node(res[n], {name = "farming:soil"})
end
end
-- throwable hoe bomb
minetest.register_entity("farming:hoebomb_entity", {
physical = true,
visual = "sprite",
visual_size = {x = 1.0, y = 1.0},
textures = {"farming_hoe_bomb.png"},
collisionbox = {0,0,0,0,0,0},
lastpos = {},
player = "",
on_step = function(self, dtime)
if not self.player then
self.object:remove()
return
end
local pos = self.object:get_pos()
if self.lastpos.x ~= nil then
local vel = self.object:getvelocity()
-- only when potion hits something physical
if vel.x == 0
or vel.y == 0
or vel.z == 0 then
if self.player ~= "" then
-- round up coords to fix glitching through doors
self.lastpos = vector.round(self.lastpos)
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hoe_area(self.lastpos, self.player)
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end
self.object:remove()
return
end
end
self.lastpos = pos
end
})
-- actual throwing function
local function throw_potion(itemstack, player)
local playerpos = player:get_pos()
local obj = minetest.add_entity({
x = playerpos.x,
y = playerpos.y + 1.5,
z = playerpos.z
}, "farming:hoebomb_entity")
local dir = player:get_look_dir()
local velocity = 20
obj:setvelocity({
x = dir.x * velocity,
y = dir.y * velocity,
z = dir.z * velocity
})
obj:setacceleration({
x = dir.x * -3,
y = -9.5,
z = dir.z * -3
})
obj:setyaw(player:get_look_yaw() + math.pi)
obj:get_luaentity().player = player
end
-- hoe bomb item
minetest.register_craftitem("farming:hoe_bomb", {
description = S("Hoe Bomb (use or throw on grassy areas to hoe land"),
inventory_image = "farming_hoe_bomb.png",
groups = {flammable = 2, not_in_creative_inventory = 1},
on_use = function(itemstack, user, pointed_thing)
if pointed_thing.type == "node" then
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hoe_area(pointed_thing.above, user)
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else
throw_potion(itemstack, user)
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if not farming.is_creative(user:get_player_name()) then
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itemstack:take_item()
return itemstack
end
end
end,
})